问题 单项选择题 A1/A2型题

属于发射光谱分析的技术是().

A.荧光分析法

B.可见及紫外分光光度法

C.原子吸收分光光度法

D.透射比浊法

E.散射比浊法

答案

参考答案:A

解析:光谱分析技术分为发射光谱分析(荧光分析法和火焰光度法)、吸收光谱分析(可见及紫外分光光度法、原子吸收分光光度法)、透射和散射光谱分析。

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     Kids are bombarded(攻击) with advertisements from every possible source: boards, clothes, walls, TV, websites

and radios. Often, even though kids don't have their own income yet, this advertising is aimed directly at them.

     Many parents have no idea that their 3-year-old children like McDonald's golden arches. Morns and dads are also

shocked when their 12-year-old children insist on(坚持) having Nike sports shoes. The businessmen give kids the

message: This product is for you. This is what you need. Nothing else will satisfy you.

     How can parents better understand and guard against this?

     Scientists show that children are a rich market for business. How much money is spent on promotion(推销活动)

to children each year? And what are kids spending their money on?

     When finding out what businessmen do to persuade your children to want something, you should know how to

teach your kids the ins and outs of buying and saving. For example, try a couple of family activities, and read through

some helpful tips. Businessmen have more than one way to win a child. Will the world of advertising change for your

child as he or she grows older?

1. Where can kids see or hear the ads?

    ________________________________________________________

2. Why do the businessmen like to spend much on promotions to children?

    ________________________________________________________

3. What will 12-year-old children do after they are bombarded With ads?

    ________________________________________________________

4. What's the message that businessmen give children?

    ________________________________________________________

5. What should parents do to guard against ads?

    ________________________________________________________